It is the registration period and the course that I want to take next semester has no day or time listed. Can anyone in the department tell me what the day and time of the class will be?

No. If the department had that information then it would be posted on the Registrar’s Directory of classes page. The reason that no day and time is listed for a course is usually because no instructor has yet been assigned to the course or the assigned instructor is no longer teaching the class. At Columbia the registration period is very early. Often times the department has not finished hiring new faculty members for the following year when the registration period begins. By listing the course, the department is making a commitment to staff the course in the following semester. However, the staffing decision is usually not made until just before the semester begins. The day and time of the class are not established until after an instructor has agreed to teach the course.